Carbamate pesticidal compositions

ABSTRACT

Tetrahydrothiazine carbamoyl oxime compounds having been found to exhibit exceptional insecticidal activity.

United States Patent Durden, Jr.

July s, 1975 CARBAMATE PESTICIDAL COMPOSITIONS John A. Durden, Jr., South Charleston, W. Va.

Union Carbide Corporation, New York, NY.

Filed: Dec. 29, 1972 Appl. No.: 319,532

Inventor:

Assignee:

US. Cl. 424/246 Int. Cl A0ln 9/00; AOln 9/12 Field of Search 424/246; 260/243 B, 243 R References Cited UNITED STATES PATENTS 3/1959 Kirchner et al 424/246 FOREIGN PATENTS OR APPLICATIONS 41-20827 5/1966 Japan 260/243 B Primary ExaminerAlbert T. Meyers Assistant ExaminerD. W. Robinson Attorney, Agent, or FirmR. C. Brown [5 7] ABSTRACT 16 Claims, No Drawings CARBAMATE PESTICIDAL COMPOSITIONS This invention relates to novel tetrahydro thiazine carbamoyloxime compositions which are useful as pesticides.

The novel compositions of this invention are the tetrahydro thiazin-3-one carbamoyloxime compounds corresponding to the following general formula:

wherein R, and R are individually, hydrogen, lower alkyl, halo-substituted lower alkyl, lower alkenyl, lower alkynyl, lower alkoxyalkyl, lower alkylthioalkyl, lower trihaloalkanesulfenyl or acyl substituents with the proviso that when R is lower trihaloalkanesulfenyl or acyl, R is hydrogen or lower alkyl;

R is hydrogen, lower alkyl, cycloalkyl, lower alkenyl, lower dialkylamino, lower alkoxyalkyl, lower alkylthioalkyl,heterocyclic alkyl, lower alkyl carbamoyl, carbamoyl, alkylsulfinylalkyl, alkylsulfo nylalkyl or acyl;

R R R and R are individually hydrogen or lower alkyl; and

n is 0, l or 2.

These compositions, with varying degrees of efficacy are useful in combating insects, mites and nematodes. In general, the compositions having the greatest degree of activity is possessed by those compounds in which the combined total number of carbon atoms in the R R and R substituents does not exceed about 8 carbon atoms.

The new compositions of this invention can be prepared conveniently in accordance with the following general reaction scheme:

where R,, R R R R R and R are as defined above.

The compositions of this invention where R is hydro-' gen can be prepared by reacting the appropriate oximine precursor with an isocyanate in accordance with the following general reaction scheme:

Ethoxycarbonylformhydroxamoyl chloride can be prepared from ethyl acetonacetate, as described in South African Pat. No. 69/8406 dated Dec. 27, 1968. Aminoethanethiol compositions where R is other than hydrogen can be prepared by the method described in J Org. Chem, 26,5l25 (196l The following specific examples are provided to more clearly illustrate the method of preparation of the new compositions of this invention:

EXAMPLE I PREPARATION OF 2-Oximino-tetrahydrol ,4-thiazin-3-one To a solution of 5.2g.(0. 13 mole) of sodium hydroxide in 150 ml of ethanol was added rapidly, under nitrogen, l5.0 g. (0.13 mole) of Z-aminoethanethiol hydrochloride with stirring and some cooling to maintain the system at room temperature. To the mixture was added a solution of 20 g. (0.13 mole) of ethoxycarbonylformhyroxamoylchloride in ethanol at 35 to 30C with stirring and cooling. After stirring at 35 to 40 for about 30 minutes the mixture was cooled to 25C and 200 ml of ethanol containing 5.2 g (0.13 mole) of sodium hydroxide was added with stirring over a ten minute period. After stirring over night at room temperature ethanol was removed in vacuo and the solid residue was treated with 200 ml. of water. The insoluble product was filtered, washed with water and then, isopropyl alcohol. The product was then recrystallized from water to yield, after drying, g., 53 per cent of product, mp. 23 3-23 5C.

EXAMPLE [I Preparation of 4-( Methylcarbamoyl)-2-(Methycarbamoyloximino)- tetrahydro-l ,4-Thiazin-3-one To a solution of 4 g. (0.027 mole) of the oxime of Example l in 50 ml of DMF was added 3 g. (0.053 mole) of methyl isocyanate and 3 drops of triethylamine. This mixture was left in a pressure bottle over night at room temperature after which it was added with stirring to a 50:50 ethyl etherzhexane mixture (about 200 ml.). The resulting white solid was collected, washed thoroughly with ethyl ether and air dried. Recrystallization from acetonitrile produced 4 g. (57 per cent) of product, m.p. l87-l89C.

EXAMPLE Ill Preparation of 2-(Methylcarbamoyloximino)-tetrahydro-1,4-Thiazin- 3one To a mixture of5 g. (0.034 mole) of the oxime of Example l in 60 ml of 1,2-dimethoxyethane was added 3g. (0.053 mole) of methylisocyanate and the mixture was left stirring in a pressure bottle over night at room temperature. After 18 hours the reaction mixture was filtered, washed with isopropylalcohol, and dried at room temperature to provide 6 g (87 per cent) of product, l68l7 1C.

EXAMPLE IV Preparation of 2-Oximino-4-Ethyl-tetrahydrol ,4-Thiazin-3-Orc To a solution of grams of Z-ethylaminoethanethiol in 150 ml of anhydrous ethanol stirring at room temperature in a conventional reaction fiask fitted with stirring paddle, drying tube, and thermometer was added a solution of 5.7 grams sodium hydroxide dissolved in lSO ml of anhydrous ethanol over a 5 minute period. After stirring this mixture for 1 hour, a solution of 21-3 grams of l-ethoxycarbonylformhydroxamoyl chloride dissolved in 100 ml of anhydrous ethanol was added dropwise over one hour to the vigorously stirred charge while maintaining the reaction temperature at 2530 by means of an ice bath as necessary. After the addition, the cooling was discontinued and the reaction mixture was stirred at room temperature for hours. The precipitated salts were filtered off and the filter cake well rinsed with anhydrous ethanol. Evaporation of the solvent left a sticky solid which was triturated with ml of ethyl acetate at room temperature. Filtration afforded 23 grams of crude product. Recrystallization from acetonitrile afforded pure oxime, m. p. 169l7l.

EXAMPLE V Preparation of 2-(Methylcarbamoyloximino)-4-Ethyl-tetrahydro-l ,4- Thiazine-3-One A quantity of 4 grams of 2-oximino-4-ethylthiamorpholin-3-one dissolved in 200 ml of acetonitrile was charged to a pressure bottle together with 6 ml of methyl isocyanate and 6 drops of thiethylamine. After 24 hours the solvent, catalyst, and excess methylisocyanate were fully evaporated and the resulting clear water-white gummy material resulting was dissolved in 100 ml of hot ethyl acetate, treated with carbon black and filtered. After addition of 65 ml of of isopropyl ether and cooling at -l0, the product crystals were collected by filtration, m.p. 61 20 The following compositions in addition to those described in the above Examples are illustrative of the new compositions of this invention: r

4-rnethyl-2-(methylcarbamoyloximino)-tetrahydrol ,4-thiazin-3-one, 4-isobutyl-2-(carbamoyloximino )-tetr'ahydro-l ,4-

thiazin-3-one, 4-(2-methoxyethyl)-2-(dimethylcarbamoyloximino)- tetrahydrol ,4-thiazin3-one,

4-allyl-2(methylcarbamoyloximino)-tetrahydrol ,4-

thiazin-3-one, 4-acetyl-2-(N-acetyl-N-methylcarbamoyloximino)- tetrahydrol ,4-thiazin-3-one, 4-methyl-2-(N-acetyl-Nmethylcarbamoyloximino)- tetrahydro-l ,4-thiazin-3-one, 4-methylthioethyl-(2-methylcarbamoyloximino)- tetrahydro' l ,4-thiazin-3-one,

4-ethyl-2 -(propynlcarbam-oyloximino)-tetrahydro- 1,4-thiazin-3-one,

(methylcarbamoyloximino)-tetrahydro-1,4- thiazin-3-one,

4- (isopropylsulfonylmethyl)-2- (methylcarbamoyloximino )-tetrahydro-l ,4- thiazin-3-one, 4-methyl-2-(N-trichloromethanesulfenyl-N- methylcarbamoyloximino)-tetrahydrol ,4-thiazin- 3-one, 4,5,6-trimethyl-2-(methylcarbamoyloximino) tetrahydro-4-thiazin-3-one, 4'methyl-6-ethyl-2-(methylcarbamoylaximino)- tetrahydrol ,4-thiazin-3-one, 4-ethyl-5-methyl-2-(methylcarbamoyloximino)- tetrahydrol,4-th ia-zin-3-one,

5,6-Dimethyl-2-(methylcarbamoyloximino)- tetrahydrol ,4-thiazin-3-one, 4-ethyl-5,6-dimethyl-2-(methylcarbamoyloximino)- tetrahydro-l ,4-thiazin-3-one, 4-isopropyl-2-(methylcarbamoyloximino)- tetrahydro-l ,4-thiazin-3-one Selected species of the new compounds were evaluated to determine their pesticidal activity against mites and certain insects, including an aphid, a caterpillar, a beetle and a fly.

Suspensions of the test compounds were prepared by dissolving one gram of compound in 50 milliliters of acetone in which had been dissolved 0.1 gram per cent of the weight of compound) of an alkylphenoxy polyethoxyethanol surfactant, as an emulsifying or dispersing agent. The resulting solution was mixed into 150 milliliters of water to give roughly 200 milliliters of a suspension containing the compound in finely divided form. The thus-prepared stock suspension contained 0.5 per cent by weight of compound. The test concentrations in parts per million by weight employed in the tests described hereinbelow were obtained by appropriate dilutions of the stock suspension with water. The test procedures were as follows:

BEAN APHID FOLlAGE SPRAY TEST Adults and nymphal stages of the bean aphid (Aphis fabae Scop.) reared on potted dwarf nasturtium plants at 6570F. and 50-70 per cent relative humidity, constituted the test insects. For testing purposes, the number of aphids per pot was standardized to 100-150 by trimming plants containing excess aphids.

The test compounds were formulated by diluting the stock suspension with water to give a suspension containing 500 parts of test compound per million parts of final formulation.

The potted plants (one pot per compound tested) infested with lO0l50 aphids, were placed on a revolving turntable and sprayed with 100-1 10 milliliters of test compound formulation by use of a DeVilbiss spray gun set at 40 psig. air pressure. This application, which lasted 25 seconds, was sufficient to wet the plants to run-off. As a control, lOO-milliliters of a water-ace tone-emulsifier solution containing no test compound were also sprayed on infested plants. After spraying, the pots were placed on their sides on a sheet of white standard mimeograph paper which had been previously ruled to facilitate counting. Temperature and humidity in the test room during the 24 hour holding period were 6570F. and 50-70 per cent, respectively. Aphids which fell onto the paper and were unable to remain standing after being uprighted were considered dead. Aphids remaining on the plants were observed closely for movement and those which were unable to move the length of the body upon stimulation by prodding were considered dead. Per cent mortality was recorded for various concentration levels.

SOUTHERN ARMYWORM LEAF SPRAY TEST Larvae of the southern armyworm (Pmdem'a eridania, (Cram.)), reared on Tendergreen bean plants at a temperature of 80i5F. and a relative humidity of 50i5 per cent, constituted the test insects.

The test compounds were formulated by diluting the stock suspension with water to give a suspension containing 500 parts of test compound per million parts of final formulation. Potted Tendergreen bean plants of standard height and age were placed on a revolving turntable and sprayed with lO0l l0 milliliters of test compound formulation by use of a DeVilbiss spray gun set at 10 psig air pressure. This application, which lasted 25 seconds, was sufficient to wet plants to runoff. As a control, lO0l l0 milliliters of a water-acetone-emulsifier solution containing no test compound were also sprayed on infested plants. When dry, the paired leaves were separated and each one was placed in a 9 centimeter Petri dish lined with moistened filter paper. Five randomly selected larvae were introduced into each dish and the dishes were closed. The closed dishes were labeled and held at 85F. for 3 days. Although the larvae could easily consume the whole leaf within 24 hours, no more food was added. Larvae which were unable to move the length of the body, even upon stimulation by prodding, were considered dead. Per cent mortality was recorded for various concentration levels.

MEXICAN BEAN BEETLE LEAF SPRAY TEST Fourth instar larvae of the Mexican bean beatle (Epilaclma variveszis, Muls.), reared on Tendergreen bean plants at a temperature of 80i5F. and 5015 per cent relative humidity, were the test insects.

The test compounds were formulated by diluting the stock suspension with water to give a suspension containing 500 parts of test compound per million parts of final formulation. Potted Tendergreen bean plants of standard height and age were placed on a revolving turntable and sprayed with -110 milliliters of test compound formulation by use of a DeVilbiss spray gun set at 10 psig air pressure. This application, which lasted 25 seconds, was sufficient to wet plants to runoff. As a control, l00l10 milliliters of a water-acetone-emulsifier solution containing no test compound were also sprayed on infested plants. When dry, the paired leaves were separated and each was placed in a 9 centimeter Petri dish lined with moistened filter paper. Five randomly selected larvae were introduced into each dish, and the dishes were closed. The closed dishes were labeled and held at a temperature of 80i5F. for 3 days. Although the larvae could easily consume the leaf within 24 to 48 hours, no more food was added. Larvae which were unableto move the length of the body, even upon stimulation, were considered dead.

FLY BAIT TEST Four to six day old adult house flies (Musca domestica, L.), reared according to the specifications of the Chemical Specialities Manufacturing Association (Blue Book, McNair-Dorland Co., NY. 1954; pages 243244, 261 under controlled conditions of 80i5F. and 50+5 percent relative humidity, were the test insects. The flies were immobilized by anesthetizing with carbon dioxide and 25 immobilized individuals, males and females, wee transferred to a cage consisting of a standard food strainer about 5 inches in diameter which was inverted over a wrapping-paper-covered surface. The test compounds were formulated by diluting the stock suspension with a 10 per cent (by weight) sugar solution to give a suspension containing 500 parts of test compound per million parts of final formulation, by weight. Ten milliliters of the test formulation were added to a souffle cup containing a one-inch square of an absorbent cotton pad. This bait cup was introduced and centered on the blotting paper under the food strainer prior to admitting the anesthetized flies. The caged flies were allowed to feed on the bait for 24 hours, at a temperature of 80i5F. and the relative humidity of 50:5 per cent. Flies which showed no sign of movement on prodding were considered dead.

MITE FOLIAGE SPRAY TEST Adults and nymphal stages of the two-spotted mite (Tetranychus urticae Koch), reared on Tendergreen bean plants at 805 per cent relative humidity, were the test organisms. Infested leaves from a stock culture were placed on the primary leaves of two bean plants 6 to 8 inches in height, growing in a 2% inch clay pot.

It will be understood that the insect species employed in the above tests are merely representative of a wide variety of pests that can be controlled by use of our compounds.

It should be noted that in addition to the insecticidal and miticidal activity indicated above, noteworthy activity against Boll Weevil was also displayed by our compounds.

The compounds contemplated in this invention may be applied as insecticides and miticides according to methods known to those skilled in the art. Pesticidal compositions containing the compounds as the active toxicant will usually comprise a carrier and/or diluent, either liquid or solid.

150-200 Mites, a sufficient number for testing, transl Suitable liquid diluents or carriers include water, peferred from the excised lea s to the fr sh plants in a troleum distillates, or other liquid carriers with or withperiod of 24 hours Following th 2 h ur rans r P out surface active agents. Liquid concentrates may be riod, the excised leaves were removed from the infested prepared b di lving one f the e om ound with 3 plants. The test compounds were formulated by dilutnonphytotoxic solvent such as acetone, xylene, or niing the stock suspension with water to give a suspension trobenzene and dispersing the toxicants in water with containing 500 parts of test Compound per million parts the acid of suitable surface active emulsifying and disof final formulation. The potted plants (one pot per rin age t mp were Placed on a revolving turntable and The choice of dispersing and emulsifying agents and sprayed with 100-1 10 milliliters of test compound forthe amount employed is dictated by the nature of the mulation by use of a DeVilbiss spray gun set at 40 psig. 25 composition and the ability of the agent to facilitate the air pressure. This application, which lasted 25 seconds, dispersion of the toxicant. Generally, it is desirable to was sufficient to wet the plants to run-off. A a C nt ol, use as little of the agent as is possible, consistent with 100-110 milliliters of water solution containing acethe desired dispersion of the toxicant in the spray so tone and emulsifier in the same concentrations as the that rain does not re-emulsify the toxicant after it is aptest compound formulation, but containing no test plied to the plant and wash it off the plant. Nonionic, compound, were also sprayed on infested plants. The anionic, or cationic dispersing and emulsifying agents sprayed plants were held at 80fi per cent relative humay be employed, for example, the condensation prodmidity for 6 days, after which a mortality count of monets of alkylene oxides with phenol and organic acids, tile forms was made. Microscopic examination for moalkyl aryl sulfonates, complex ether alcohols, quatertile forms was made on the leaves of the test plants. nary ammonium compounds, and the like. Any individual which was capable of locomotion upon In the preparation of wettable powder or dust or prodding was considered living. granulated compositions, the active ingredient is dis- The results of these tests are set forth in TAble I bepersed in and on an appropriately divided solid carrier low. In these tests the pesticidal activity of the comsuch as clay, talc, bentonite, diatomaceous earth, fulpounds against aphid, mite, Southern Armyworm, Bean lers earth, and the like. In the formulation of the wetta- Beetle and house fly was rated as follows: ble powders the aforementioned dispersing agents as well as lignosulfonates can be included.

1 no control The required amount of the toxicants contemplated 3 partial control herein may be applied per acre treated in from 1 to 200 5 excellent control gallons or more of liquid carrier and/or diluent or in TABLE I PEST NAME M.P., C. Aphid Mite Southern Bean Housefly Army- Beetle WOI'TI'I 4-Ethyl-2-( methylcarbamoyl- 61-63 5 5 5 oximino)-tetrahydrol ,4-thiazin-3-one 4-Butyl-2-(mcthylcarbamoyl- 90-93 3 5 1 5 5 oximino)-tctrahydrol ,4-thiazin-3-onc 2-( Methylcarbamoyloxy)-tctrahydrol ,4- 168-17 1 3 5 3 l 5 thiazin-3-one 4-( Methylcarbamoyl-2(methyl- [87-189 5 5 l l 5 carbamoyloximino )-tetrahydrol ,4-thiazin-3-onc 4-(2-Furylmethyl)-2-(mcthyl- 56-59 5 l l 3 5 carbamoyloximino)-tctrahydrol ,4-thiazin-3-one 4-Cyclohcxyl-2-(methylcarbamoyll60-l64 l 5 l 5 5 oximino )-tetrahydrol .4-thiazin-3-onc Dashes indicate no test conducted. from about 5 to 500 pounds ofinert solid carrier and/or At higher dosage rates all of the above compositi diluent. The concentration in the liquid concentrate will usually vary from about 10 to 95 per cent by weight may be expected to exhibit some activity against the various test species, however, the data presented in Table I above clearly indicates a rather high degree of selectivity for some species and a broad spectrum of activity for others.

and in the solid formulations from about 0.5 to about per cent by weight. Satisfactory sprays, dusts, or granules for general use contain from about one-fourth to 15 pounds of active toxicant per acre.

The pesticides contemplated herein prevent attack by insects and mites upon plants or other material to which the pesticides are applied, and they have relatively high residual toxicity. With respect to plants, they have a high margin of safety in that when used in sufficient amount to kill or repel the insects, they do not burn or injure the plant, and they resist weathering which includes wash-off caused by rain, decomposition by ultra-violet light, oxidation, or hydrolysis in the presence of moisture or, at least, such decomposition, oxidation, and hydrolysis as would materially decrease the desirable pesticidal characteristic of the toxicants or impart undesirable characteristics, for instance, phytotoxicity, to the toxicants. The toxicants are so chemically inert that they are now compatible with substantially any oher constituents of the spray schedule, and they may be used in the soil, upon the seeds, or the roots of plants without injuring either the seeds or roots of plants.

What is claimed is:

1. An insecticidal and miticidal composition comprising an acceptable carrier and an an insecticidally or miticidally effective amount of a compound having the structure:

cll viso that when R, is lower trihaloalkanesulfenyl or acyl, R is hydrogen or lower alkyl;

R, is cycloalkyl, lower dialkylamino, lower alkoxyalkyl, lower alkylthioalkyl, furyl methyl, lower alkylcarbamoyl, carbamoyl, alkylsulfinylalkyl, alkylsulfonylalkyl or acyl;

R.,, R R and R are individually hydrogen or lower alkyl; and

n is 0.

2. An insecticidal and miticidal composition according to claim 1 wherein R, is hydrogen and R is methyl.

3. An insecticidal and miticidal composition according to claim 1 wherein R, and R are hydrogen, alkyl, acyl or trihaloalkanesulfenyl.

4. an insecticidal and miticidal composition according to claim 1 wherein R, and R are hydrogen or alkyl and R R R and R are hydrogen.

5. An insecticidal and miticidal composition according to claim 1 wherein R, and R are hydrogen, lower alkyl, lower alkylcarbamoyl or carbamoyl and R,, R R and R are hydrogen.

6. An insecticidal and miticidal composition according to claim 1 wherein R, is methyl, R is hydrogen and R,, R R and R are hydrogen.

7. An insecticidal and miticidal composition accord- 5 ing to claim 1 wherein R, is methyl, R is hydrogen, R

is lower alkoxyalkyl and R R R and R are hydrogen.

8. An insecticidal and miticidal composition comprising an acceptable carrier and an an insecticidally or miticidally effective amount of 4-(2-methoxyethyl)-2- (dimethylcarbamoyloximino )-tetrahydro-l ,4-thiazin- 3-one.

9. A method of controlling insects and mites which comprises subjecting them to a lethal amount of a compound having the structure:

wherein:

R, and R are individually, hydrogen, lower alkyl, halo substituted lower alkyl, lower alkenyl, lower alkynyl, lower alkoxyalkyl, lower alkyl thioalkyl, lower trihaloalkanesulfenyl or acyl, with the proviso that when R, is lower trihaloalkanesulfenyl or acyl, R is hydrogen or lower alkyl;

R is cycloalkyl, lower dial'kylamino, lower alkoxyalkyl, lower alkylthioalkyl, furyl methyl, lower alkylcarbamoyl, carbamoyl, alkylsulfinylalkyl, alkylsulfonylalkyl or acyl;

R R R and R are individually hydrogen or lower alkyl; and

n is O.

10. A method according to claim 9 wherein R, is hydrogen and R is methyl.

11. A method according to claim 9 wherein R, and R are hydrogen, alkyl, acyl or trihaloalkanesulfenyl.

12. A method according to claim 9 wherein R, and R are hydrogen or alkyl and R R R and R are hydrogen.

13. A method according to claim 9 wherein R, and R are hydrogen, lower alkyl, lower alkylcarbamoyl or carbamoyl and R R R and R are hydrogen.

14. A method according to claim 9 wherein R, is methyl, R is hydrogen and R R R and R are hydro- 15. A method according to claim 9 wherein R, is methyl, R is hydrogen, R is lower alkoxyalkyl and R R R and R are hydrogen.

16. A method according to claim 9 wherein said compositions is 4-( Z-methoxyethyl )-2- (dimethylcarbamoyloximino)-tetrahydro-l ,4-thiazin- 3-one.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,894,150 D d July 8, 1975 Inventor) John A. Durden, Jr.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1, line 10,, the following formula was not clearly reproduced:

Column 1, line 45 the following formula was not clearly reproduced:

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,894,150 Dated July 8, 1975 Inventor(s) John An Durden, Jr.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

N\ /s 9 R3 0 NOCN UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,894,150 Dated Julv 8. 1915 gfi x John A. Burden, Jr.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 2, line 2, after the word "can" insert "also".

Column 2, lines 5 to 20 the following formula was not clearly reproduced:

O NOH C R N s +R NCO \C C/ R R R R NO NHR 2 R N s UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTIGN Patent No. 3,894,150 Dated Julv 8, 1975 Inventox-(s) An Jr.

It is certified that'error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 2, lines 30 to 34 the following formula was not clearly reproduced:

H CHZOC C\Cl R N I I SNa R R7 I R3 N \C C/ R R R R Column 3 line 34, "(Methycarbamoyloximino)" should be "(Methylcarbamoyloximino)" UNITED STATES PATENT 7 OFFICE CERTIFICATE OF CORRECTION Paten N 3.894.150 Y Dated July 8.1975

Inventor John Aw rden, Jr.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 4, line 34 "20" should read "63". 7

Column 4, line 64 "(methylcarbamoylazimino)" should read "methylcarbamoyloximino)".

Column 5, line 43, "lOO-milliliters" should read "100-110 milliliters" Column 6,' line 59', ".we,e" ehould read "were";

Column 7, line 39, ,"TABlef' should read "Table".

Column 9, lines 25 to 35, the following formula was not .clea'rly reproduced; 0 1

0 NOCN UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,894,150 Dated y 1975 Inven John A, Durden, Jr.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 9, line 57 "an" should read "An".

Column 10, lines 16 through 27, the following formula was not I clearly reproduced:

(J NOCN Signed and Sealed this sixteenth D ay 0f December 1 9 75 [SEAL] Arrest:

RUTH C. MASON C. MARSHALL DANN Arresting Ojlficr Commissioner ufPalents and Trademarks 

1. AN INSECTICIDAL AND MITICIDAL COMPOSTION COMPRISING AN ACCEPTABLE CARRIER AND AN AN INSECTICIDALLY OR MITICIDALLY EFFECT TIVE AMOUNT OF A COMPOUND HAVING THE STRUCUTRE:
 2. An insecticidal and miticidal composition according to claim 1 wherein R1 is hydrogen and R2 is methyl.
 3. An insecticidal and miticidal composition according to claim 1 wherein R1 and R2 are hydrogen, alkyl, acyl or trihaloalkanesulfenyl.
 4. an insecticidal and miticidal composition according to claim 1 wherein R1 and R2 are hydrogen or alkyl and R4, R5, R6 and R7 are hydrogen.
 5. An insecticidal and miticidal composition according to claim 1 wherein R1 and R2 are hydrogen, lower alkyl, lower alkylcarbamoyl or carbamoyl and R4, R5, R6 and R7 are hydrogen.
 6. An insecticidal and miticidal composition according to claim 1 wherein R1 is methyl, R2 is hydrogen and R4, R5, R6 and R7 are hydrogen.
 7. An insecticidal and miticidal composition according to claim 1 wherein R1 is methyl, R2 is hydrogen, R3 is lower alkoxyalkyl and R4, R5, R6 and R7 are hydrogen.
 8. An insecticidal and miticidal composition comprising an acceptable carrier and an an insecticidally or miticidally effective amount of 4-(2-methoxyethyl)-2-(dimethylcarbamoyloximino)-tetrahydro-1,4-thiazin-3 -one.
 9. A method of controlling insects and mites which comprises subjecting them to a lethal amount of a compound having the structure:
 10. A method according to claim 9 wherein R1 is hydrogen and R2 is methyl.
 11. A method according to claim 9 wherein R1 and R2 are hydrogen, alkyl, acyl or trihaloalkanesulfenyl.
 12. A method according to claim 9 wherein R1 and R2 are hydrogen or alkyl and R4, R5, R6 and R7 are hydrogen.
 13. A method according to claim 9 wherein R1 and R2 are hydrogen, lower alkyl, lower alkylcarbamoyl or carbamoyl and R4, R5, R6 and R7 are hydrogen.
 14. A method according to claim 9 wherein R1 is methyl, R2 is hydrogen and R4, R5, R6 and R7 are hydrogen.
 15. A method according to claim 9 wherein R1 is methyl, R2 is hydrogen, R3 is lower alkoxyalkyl and R4, R5, R6 and R7 are hydrogen.
 16. A method according to claim 9 wherein said compositions is 4-(2-methoxyEthyl)-2-(dimethylcarbamoyloximino)-tetrahydro-1,4-thiazin-3 -one. 